vga Drivers +Mouse
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Frater
parent
0775fe6193
commit
7c9ad48b19
10 changed files with 730 additions and 404 deletions
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@ -47,28 +47,28 @@ mouse_reset:
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mov fs,ax
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; effacer les variables du drivers
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mov byte [fs:BDA_MOUSE + mouse.idx],0
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mov dword [fs:BDA_MOUSE + mouse.buffer],0
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mov byte [fs:BDA_MOUSE + mouse.packetlen],3 ; 3 bytes par défaut
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mov byte [fs:BDA_MOUSE + mouse.status],0
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mov byte [fs:PTR_MOUSE + mouse.idx],0
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mov dword [fs:PTR_MOUSE + mouse.buffer],0
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mov byte [fs:PTR_MOUSE + mouse.packetlen],3 ; 3 bytes par défaut
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mov byte [fs:PTR_MOUSE + mouse.status],0
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mov word [fs:BDA_MOUSE + mouse.x],GFX_WIDTH / 2
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mov word [fs:BDA_MOUSE + mouse.y],GFX_HEIGHT / 2
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mov word [fs:PTR_MOUSE + mouse.x],GFX_WIDTH / 2
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mov word [fs:PTR_MOUSE + mouse.y],GFX_HEIGHT / 2
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mov word [fs:BDA_MOUSE + mouse.cur_x], 0
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mov word [fs:BDA_MOUSE + mouse.cur_y], 0
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mov word [fs:PTR_MOUSE + mouse.cur_x], 0
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mov word [fs:PTR_MOUSE + mouse.cur_y], 0
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mov byte [BDA_MOUSE + mouse.cur_counter], -1 ; Force l'état caché au départ
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mov byte [BDA_MOUSE + mouse.cur_drawing], 0 ; Reset du verrou de dessin
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mov byte [BDA_MOUSE + mouse.bkg_saved],0 ; flag image saved
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mov byte [fs:PTR_MOUSE + mouse.cur_counter], -1 ; Force l'état caché au départ
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mov byte [fs:PTR_MOUSE + mouse.cur_drawing], 0 ; Reset du verrou de dessin
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mov byte [fs:PTR_MOUSE + mouse.bkg_saved],0 ; flag image saved
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mov ax, cs
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mov word [fs:BDA_MOUSE + mouse.cur_seg], ax
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mov word [fs:BDA_MOUSE + mouse.cur_ofs], mouse_arrow
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mov word [fs:PTR_MOUSE + mouse.cur_seg], ax
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mov word [fs:PTR_MOUSE + mouse.cur_ofs], mouse_arrow
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; experiemntal
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mov byte [fs:BDA_MOUSE + mouse.wheel],0
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mov byte [fs:PTR_MOUSE + mouse.wheel],0
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ret
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; ------------------------------------------------------------
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@ -157,7 +157,7 @@ mouse_detect_packet_len:
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mov ax, BDA_CUSTOM_SEG
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mov fs,ax
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mov byte [fs:BDA_MOUSE + mouse.packetlen], 3
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mov byte [fs:PTR_MOUSE + mouse.packetlen], 3
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; SET_RATE + 200
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mov bl, MOUSE_SET_RATE
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@ -188,7 +188,7 @@ mouse_detect_packet_len:
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je .is4
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ret
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.is4:
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mov byte [fs:BDA_MOUSE + mouse.packetlen], 4
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mov byte [fs:PTR_MOUSE + mouse.packetlen], 4
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ret
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; ------------------------------------------------------------
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@ -280,7 +280,7 @@ mouse_sendcmd:
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; ------------------------------------------------------------
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isr_mouse_handler:
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; sauvegarder tout les registres
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pusha
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pushad
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push ds
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; use BDA segment
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@ -290,7 +290,7 @@ isr_mouse_handler:
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; lire un octet depuis le contrôleur et le stocker dans le buffer
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in al, i8042_PS2_DATA ; lire octet souris
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movzx bx, byte [BDA_MOUSE + mouse.idx]
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movzx bx, byte [PTR_MOUSE + mouse.idx]
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cmp bl,0
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jne .read_packet
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@ -298,88 +298,88 @@ isr_mouse_handler:
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test al, 00001000b ; bit 3 = 1
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jz .done_eoi ; allignement erroné
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.read_packet:
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mov byte [BDA_MOUSE + mouse.buffer + bx], al
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inc byte [BDA_MOUSE + mouse.idx]
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.read_packet:
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mov byte [PTR_MOUSE + mouse.buffer + bx], al
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inc byte [PTR_MOUSE + mouse.idx]
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; vérifier si le packet est complet
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mov al, [BDA_MOUSE + mouse.packetlen]
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cmp byte [BDA_MOUSE + mouse.idx], al
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mov al, byte [PTR_MOUSE + mouse.packetlen]
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cmp byte [PTR_MOUSE + mouse.idx], al
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jb .done_eoi
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; packet complet, on decode les données (ou on jette si c'est incorrect)
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mov byte [BDA_MOUSE + mouse.idx], 0 ; reset de l'index de lecture
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mov byte [PTR_MOUSE + mouse.idx], 0 ; reset de l'index de lecture
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; debut du décodage des données
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mov bl, [BDA_MOUSE + mouse.buffer] ; status
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mov bl, byte [PTR_MOUSE + mouse.buffer] ; status
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; --- BOUTONS ---
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mov al,bl ; extraction des boutons
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mov al, bl ; extraction des boutons
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and al, 00000111b ; Bits 0, 1, 2 = Gauche, Droite, Milieu
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mov [BDA_MOUSE + mouse.status], al
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mov [PTR_MOUSE + mouse.status], al
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xor ax,ax
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mov al, byte [BDA_MOUSE + mouse.buffer+1] ; delta X
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test bl,00010000b ; signe X (4eme bit)
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mov al, byte [PTR_MOUSE + mouse.buffer+1] ; delta X
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test bl, 00010000b ; signe X (4eme bit)
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jz .x_pos
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mov ah,0xff ; X est négatif
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.x_pos:
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add [BDA_MOUSE + mouse.x], ax
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.x_pos:
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add [PTR_MOUSE + mouse.x], ax
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xor ax,ax
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mov al, byte [BDA_MOUSE + mouse.buffer+2] ; delta Y
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test bl,00100000b ; signe Y (5eme bit)
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mov al, byte [PTR_MOUSE + mouse.buffer+2] ; delta Y
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test bl, 00100000b ; signe Y (5eme bit)
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jz .y_pos
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mov ah,0xff ; y est négatif
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.y_pos:
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sub [BDA_MOUSE + mouse.y], ax
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mov ah, 0xff ; y est négatif
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.y_pos:
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sub [PTR_MOUSE + mouse.y], ax
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; --- CLAMPING X ---
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; Check minimum (0)
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cmp word [BDA_MOUSE + mouse.x], 0
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cmp word [PTR_MOUSE + mouse.x], 0
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jge .check_x_max
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mov word [BDA_MOUSE + mouse.x], 0
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mov word [PTR_MOUSE + mouse.x], 0
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jmp .done_x
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.check_x_max:
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.check_x_max:
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; Check maximum (e.g., 639 for graphics, or pixel width)
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cmp word [BDA_MOUSE + mouse.x], GFX_WIDTH-1 ; Replace with variable or define
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cmp word [PTR_MOUSE + mouse.x], GFX_WIDTH-1 ; Replace with variable or define
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jle .done_x
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mov word [BDA_MOUSE + mouse.x], GFX_WIDTH-1
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.done_x:
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mov word [PTR_MOUSE + mouse.x], GFX_WIDTH-1
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.done_x:
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; --- CLAMPING Y ---
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; Check minimum (0)
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cmp word [BDA_MOUSE + mouse.y], 0
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cmp word [PTR_MOUSE + mouse.y], 0
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jge .check_y_max
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mov word [BDA_MOUSE + mouse.y], 0
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mov word [PTR_MOUSE + mouse.y], 0
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jmp .done_y
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.check_y_max:
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.check_y_max:
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; Check maximum
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cmp word [BDA_MOUSE + mouse.y], GFX_HEIGHT-1 ; Replace with variable or define
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cmp word [PTR_MOUSE + mouse.y], GFX_HEIGHT-1 ; Replace with variable or define
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jle .done_y
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mov word [BDA_MOUSE + mouse.y], GFX_HEIGHT-1
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.done_y:
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mov word [PTR_MOUSE + mouse.y], GFX_HEIGHT-1
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.done_y:
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; check si il y a un 4eme byte a traiter
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mov al, [BDA_MOUSE + mouse.packetlen]
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mov al, [PTR_MOUSE + mouse.packetlen]
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cmp al,4
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jne .done
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; si packetlen = 4, gérer la molette; experimental et non fonctionnel
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movsx ax, byte [BDA_MOUSE + mouse.buffer+3] ; delta Wheel
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add word [BDA_MOUSE + mouse.wheel], ax
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movsx ax, byte [PTR_MOUSE + mouse.buffer+3] ; delta Wheel
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add word [PTR_MOUSE + mouse.wheel], ax
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.done:
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.done:
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; update la position du curseur sur l'écran
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; en ce moment c'est commented out (debug)
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; call cga_mouse_cursor_move
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GFX MOUSE_MOVE
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.done_eoi:
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.done_eoi:
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mov al, 0x20
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out i8259_SLAVE_CMD, al ; EOI PIC esclave
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out i8259_MASTER_CMD, al ; EOI PIC maître
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; restaurer tous les registres
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pop ds
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popa
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popad
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iret
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